| In this paper,3D modeling and 3D printing are used in primary school mathematics classroom to help students understand abstract knowledge of solid geometry more vividly and directly.This paper takes the fourth grade geometry learning content of primary mathematics as an example.Deeply explore and find the combination of geometry and 3D modeling and 3D printing,through interviews with front-line teachers,preliminarily determine the content of the open questionnaire,and then randomly select 50 students in the fourth grade of 61 primary school in Shanghai to carry out the questionnaire pre-survey.Through statistical analysis of the pre-survey questionnaire,the reliability and validity of the questionnaire were tested.According to the results of the pre-survey,the questionnaire was revised to form the pre-test questionnaire and the post-test questionnaire.According to the students’ cognitive deviation and learning style,the teaching design and teaching practice are carried out,and 3D modeling and 3D printing are skillfully combined with mathematical solid geometry.On this basis,gradually explore appropriate teaching methods and teaching model.In order to reduce the error,avoid the students ahead of the preview,learning time,the influence of mechanical memory,each teaching practice are two classes continuously,the beginning of the course the students first pre-test learning starting point of students,and classroom teaching,every time the end of the classroom,the students immediately after the test,by comparison of students before test and after test of teaching analysis,can effectively understand the students knowledge,in order to test the application of 3D modeling and 3D printing technology better in mathematics classroom teaching can promote students’ understanding of abstract geometric knowledge,set up the experimental class and control class,the experimental class for mining Learning with non-traditional methods,that is,using 3D modeling in mathematics classroom and teaching in combination with mathematics,and teaching in contrast class with traditional teaching methods.The teaching method combining3 D modeling with 3D printing and mathematics can effectively help students to understand the teaching knowledge points better and increase their interest in learning. |
